00:01
In this exercise, we have to use the effects that the relativistic energy of a particle is equal to gamma mc squared, where gamma is 1 over the square root of 1 minus v squared over c squared, and that the relativistic momentum is equal to gamma times mv, and we have to obtain that e squared is equal to pc squared plus mc squared squared squared.
00:28
So basically, i'm going to calculate e squared minus p c squared.
00:39
So we get that e squared is gamma squared, m squared, c to the fourth, minus p squared, p squared is gamma squared, m squared v squared, times c squared.
00:59
So this is equal to gamma squared, m squared, c squared, times c squared minus v squared.
01:13
So this is gamma squared, m squared, c to the fourth, 1 minus v squared over c squared...